%0 Research article
%T Growth phase of bare-root Scots pine seedlings and their susceptibility to Gremmeniella abietina
%A Petäistö, Raija-Liisa
%D 1999
%J Silva Fennica
%V 33
%N 3
%R doi:10.14214/sf.655
%U https://silvafennica.fi/article/655
%X Bare-root row-sown seedlings of Scots pine (Pinus sylvestris L.) in a  forest nursery were inoculated with Gremmeniella abietina conidia at  different times during their first and second growing seasons. The  following spring, the proportion of diseased seedlings was different in  various inoculation time treatments according to the age of the  seedlings. The first year seedlings were susceptible to infection until  late summer, whereas the second year seedlings were not. It is thought  that this difference is due to the different growth rhythms of the first  and second year seedlings. The difference in the susceptibility of  bare-root seedlings to the disease in various growth corresponded to  that reported earlier for container seedlings.